20697890 is an even 8-digits composite number following 20697889
and preceding 20697891 . In scientific notation, it is written as 2.0697890 × 10^7.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 8263680 positive integers (up to 20697890) that are relatively prime to 20697890.
20697890 has 16 divisors, whose sum is 37325880
The reverse of 20697890 is 09879602
Previous prime number is 641
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million six hundred ninety-seven thousand eight hundred ninety
Scientific notation
2.0697890 × 10^7
Engineering notation
2.0697890 × 10^6
Prime Factorization
2 × 5 × 641 × 3229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20697890
Product of the distinct prime numbers
The prime factorization of 20697890 is 2 × 5 × 641 × 3229.
Since it has a total of 4 prime factors.
3 , 5 , 88 , 70 , 471 , 632 , 9155 , 1109 , 35982 , 19545 , 63342 , 701641 , 113620 , 1094109 , 67737760 , 26219726 , 6124627 , 35222081 , 6761758836 , 7025837405
n×2
41395780
n×3
62093670
n×4
82791560
n×5
103489450
n÷2
10348945
n÷3
6899296.6666667
n÷3
5174472.5
n÷5
4139578
n2
428402650452100
n3
8.867030934766E+21
n4
1.8352883091438E+29
n5
3.7986595540945E+36
2 √n
4549.4933783884
3 √n
274.56300844126
4 √n
67.449932382386
5 √n
29.052614060911
1 , 2 , 5 , 10 , 641 , 1282 , 3205 , 3229 , 6410 , 6458 , 16145 , 32290 , 2069789 , 4139578 , 10348945 , 20697890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20697889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20697890 can be divided by 16 positive divisors.
The sum of these divisors (counting 20697890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111101001100100010
3
Ternary
1102221120011112
4
Quaternary
1032331030202
5
Quinary
20244313030
6
Senary
2015343322
8
Octal
116751442
10
Decimal
20697890
12
Duodecimal
6b21b42
16
Hexadecimal
13bd322
20
Vigesimal
6974ea
36
Base36
cbmle
md5
ae275a79d98bfe9014928c190329f3d6
sha1
6287fec0d559efd5c57952ae88a452ee0da6cfea
sha256
43e8737dabcbfdc9ae45b1eb1b5f4804c51d5e9708ffd51b372d83434b2e4672
sha512
ef582353672944517438dd2aad80b882731b136d167d1d9512a3876794bf5602e0abfe03bdc6d1a09aa840598758dd6ae7f6459e6749a4990ed5da91aab4e28a
ripemd-160
d5c2aa54e63e16ab64c442557f5310973d45d51b
Diameter
41395780
Circumference
130048678.33762
Area
1.3458666194387E+15
Volume
3.7142132325086E+22
Surface area
5.3834664777549E+15
Circumference
130048678.33762
Perimeter
82791560
Area
428402650452100
Diagonal
29271236.750506
Surface area
2570415902712600
Volume
8.867030934766E+21
Space diagonal
35849797.089472
Perimeter
62093670
Area
1.8550378917005E+14
Altitude
17924898.544736
Surface area
1.8550378917005E+14
Volume
1.0449896171607E+21
Height
9757078.9168355